--- a/mozilla-release/toolkit/xre/nsSigHandlers.cpp	2014-11-26 13:30:27.000000000 -0100
+++ a/mozilla-release/toolkit/xre/nsSigHandlers.cpp	2014-12-09 20:41:11.042515927 -0100
@@ -152,7 +152,7 @@ 
   status->__invalid = status->__denorm = status->__zdiv = status->__ovrfl = status->__undfl =
     status->__precis = status->__stkflt = status->__errsumm = 0;
 
-  __uint32_t *mxcsr = &uc->uc_mcontext->__fs.__fpu_mxcsr;
+  uint32_t *mxcsr = &uc->uc_mcontext->__fs.__fpu_mxcsr;
   *mxcsr |= SSE_EXCEPTION_MASK; /* disable all SSE exceptions */
   *mxcsr &= ~SSE_STATUS_FLAGS; /* clear all pending SSE exceptions */
 #endif
@@ -172,13 +172,13 @@ 
   *sw &= ~FPU_STATUS_FLAGS;
 #endif
 #if defined(__amd64__)
-  __uint16_t *cw = &uc->uc_mcontext.fpregs->cwd;
+  uint16_t *cw = &uc->uc_mcontext.fpregs->cwd;
   *cw |= FPU_EXCEPTION_MASK;
 
-  __uint16_t *sw = &uc->uc_mcontext.fpregs->swd;
+  uint16_t *sw = &uc->uc_mcontext.fpregs->swd;
   *sw &= ~FPU_STATUS_FLAGS;
 
-  __uint32_t *mxcsr = &uc->uc_mcontext.fpregs->mxcsr;
+  uint32_t *mxcsr = &uc->uc_mcontext.fpregs->mxcsr;
   *mxcsr |= SSE_EXCEPTION_MASK; /* disable all SSE exceptions */
   *mxcsr &= ~SSE_STATUS_FLAGS; /* clear all pending SSE exceptions */
 #endif